Closure for paste tubes



Dec. 10, 1929. H. c. PRINGLE 1,738,728

CLOSURE FOR PASTE TUBES Filed Nov. 23, 1927 FT 5.4. Fig. 8.

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INVENTEIRI di Patented been. 10, 19 29 HARRY C. PRINGLE, OF HYDE PARK, MASSACHUSETTS CLOSURE FOB PASTE TUBES Application filed November 23, 1927. Serial No. 235,252.

This invention relates to an improved closure for collapsible tubes containing paste, Slifl'l as, tooth paste, shaving paste, and the li e.

The object of the invention is to provide an efiicient closure which may be easily manipulated and which will securely close the paste orifice, and which will not be open to the objection of becoming disconnected from the tube and dropping on the floor.

The invention consists in a closure for paste tubes such as set forth in the following specification and particularly pointed out in the claims;

Referring to the drawings:

Figure 1 is a sectional elevation of a collapsible paste tube with the closure of my invention attached thereto.

Fig. 2 is a plan View of the same.

Fig. 3 is a side elevation, and Fig. 4 a plan of the form of closing device illustrated in F ig. 1, the same being shown on an enlarged scale.

Fig. 5 is a side elevation, and Fig. 6 a plan of a modified form of closing device.

Fig. 7 isa side elevation, and Fig. 8 a plan of another modified form of closing device.

Like numerals refer to like parts in the several views of the drawings.

In the drawings, 10 is a collapsible tube for paste, 11 the top thereof, and 12 is the orifice through which the paste is extruded. 14 is a slide movable in a slot 13 extending transversely'of the orifice 12 in the top 11, in the form illustrated in Figs. 1, 2, 3 and 4, and consisting of a wedge-shaped piece of sheet metal terminating at one end thereof in an upturned finger piece 15 and in an ear 16.. The slot has an upper side 8 and a lower side 9, the upper side-8 being preferably slightly inclined relatively to the under side 9 of the slot. The wedge-shaped member 14 consists of two sides, a lower side 17 and an upper side 18 and an end 19. Preferably, the lower side 17 is-positioned at right angles to the median axial line of the tube 10, while the upper side 18 is slightly inclined thereto thus forming a wedge, thesides 17 and 18 being joined by the end 19. The end 19 terminates in sharp corners 20 and 21 so that whenthe slide is moved to close the orifice, any paste in the slot 13 will be cut OE and pushed outwardly from the tube.

The top 11 is provided with a stop 22 against which the ear 16 on the slide 14 will abut when the orifice is opened by moving the slide 14 toward the right.

It will be seen that the slide 14 when moved to the position illustrated in Fig. 1, will close the orifice 12 and the spring construction together with the wedge shape of the slide will always cause it to be pressed downwardly against the orifice 12 and securely close the iame when the slide is placed as illustrated in ig. 1. I

In Fig. 5 a modified form of the slide member 23 is illustrated, the same consisting of a base 24, an end flange 25 and a longitudinal flange 26 having an inclined top 27. The up per end 28 of the flange 25 forms a finger piece and the lower end 29 thereof forms a stop.

In Figs. 7 and 8 another modification of the slide member is illustrated in which 30 is the slide member having an inclined top 31, a finger piece 32 and a stop ear 33. v

p The slides illustrated in Figs. 5 and 6 and in Figs. 7 and 8 operate in the same manner as the slide illustrated in Figs. 1, 2, 3 and 4, except that the slide illustrated in Figs. 1, 2, 3 and 4 has a spring action thereto which en'- ables it to take up any wear on the top 11 which may occur, due tothe continued use of the device. v

It will be seen that the orifice 12 extends entirely through the top 11 of the paste tube and that the left end, Fig. 1, of the slot 18 terminates at the edge of said orifice 12, so that the slot 13 as a whole is positioned adjacent to and entirely on one side of the orifice 12, the lower defining wall of the slot being on a level with the outermost end of said orifice and therefore none of the paste extruded through the orifice 12 will lodge in the slot 13 and. any paste left on the top can be easily wiped off, so that the same will always be in a cleanly condition. Furthermore, it willbe noted that the slide 14 is imperforate and that the paste, when extruded from the tube, passes out through the orifice and past the end of the slide, so that the slide will always be free of paste which, hardening thereon, might interfere with its easy operation.

I claim:

1. A closure for paste tubes having, in com bination, a top provided with an orifice extending entirely therethrough longitudinally of said tube and an imperforate slide movable across the extreme outer end of said orifice in a slot extending transversely of said tube and positioned adjacent to and entirely on one side of the orifice, the lower defining wall thereof being on a level with the outermost end of said orifice, the upper face of said slide being inclined relatively to the lower face thereof and said upper and lower faces contacting with corresponding upper and lower sides of said slot, whereby said orifice may be opened or closed. i

2. A closure for paste tubes having, in combination, a top provided with an orifice extending entirely therethrough longitudinally of said tube and an imperforateslide mov-' able across the extreme outer end of said orifice in a slot extending transversely of said tube and positioned adjacent to and entirely on one side of the orifice, the lower defining wall thereof being on a level with the outermost end of said orifice, said slide being composed of sheet material and comprising an upper side, a lower side and an end piece joining said sides, the upper side of said slide being inclined relatively to the lower side thereof, and said upperv and lower sides contacting with corresponding upper and lower sides of said slot, whereby said orifice may be opened or closed. a

3. A closure for paste tubes having, in

combination a. top provided with an orifice extending entirely therethrough longitudinally of said tube and an imperforate slide movable across the extreme outer end of said orifice in a slot extending transversel of said tube and positionedadjacent to an entirely on one side of the orifice, the lower defining wall thereof being on a level with the outermost end of said orifice, said slide being composed of spring sheet material and com prlsing an upper side, a lower side and an end piece jommg said sides, the upper side of said slide being inclined relatively to the lower side thereof and said upper and lower sides contacting with corresponding upper and lower sides of said slot whereby said orifice may be opened or closed.

In testimony whereof I have hereunto set my hand.

- HARRY C. PRINGLE. 

